title: Variable incidence angle subwavelegth grating SPR graphene biosensor.
abstract: This paper investigates the sensitivity enhancement of a variable incidence angle subwavelength grating based multilayer surface plasmon resonance biosensor (SPRB). In the proposed design, a periodic array of subwavelength grating is integrated on top of a layer of graphene sheet in the multilayer SPR biosensor. The performance of the biosensor is investigated through monitoring the biomolecular interactions of cDNA-ssDNA interactions on its surface. The sensitivity improvement is indicated by the shift of the resonance peak angle.
authors.forename: Md Saiful
authors.initials: MS
authors.lastname: Islam
authors.forename: Abbas Z
authors.initials: AZ
authors.lastname: Kouzani
mesh_terms: D015374:Biosensing Techniques / Q000295:instrumentation* / Q000379:methods*; D003198:Computer Simulation; D004277:DNA, Single-Stranded / Q000032:analysis; D004560:Electricity; D004867:Equipment Design; D006108:Graphite / Q000737:chemistry*; D008027:Light; D059629:Signal-To-Noise Ratio; D020349:Surface Plasmon Resonance / Q000295:instrumentation*
chemical_list: D004277:DNA, Single-Stranded; D006108:Graphite